Lightning protection of metal construction objects
PL422435A1
Method for protecting routes of ground-buried metal transmission pipelines, preferably gas pipelines, against the effects of lightning strokes, and the route lightning arrester for the application of this method
PL401017A1
Street lighting pole whose source of emitting the light are LED diodes
PL401016A1
Method and apparatus for monitoring local activity of storm clouds over land, posing a threat to lightning
PL385747A1
Lightning conductor with accelerated air ionization
PL365619A1
Lightning arrester exhibiting an accelerated air ionisation feature
PL360217A1
Method and set of test instruments designed for evaluation of electric parameters of lightning arrester systems
PL346250A1
Ionisation-type smoke detector
PL333954A1
Method of providing tanks containing dangerous materials with a lighting protection
PL333707A1
Lightning arrester exhibiting an accelerated air ionisation feature
PL332387A1
Lightning arrester exhibiting an accelerated air ionisation feature
PL313213A1
Numerical signal stabilising electronic circuit
PL313212A1
Method of synthetically visualising an object protected by a fire protection system
PL313214A1
Electric circuit arrangement of fire protection system with fire alarm indicators
PL313211A1
False fire alarm preventing ionic fire detector
PL313065A1
Fire warning sensor and method of installing same
PL309315A1
Method of remotely addressing fire detector binary code and system therefor
